Ventilator-grate.



No. 880,926. PATENTED SEPT. 11, 1906. S.PETBRSEN.

11211111111011 GRATE.

APPLICATION FILED AUG. 22, 1905.

- Samuel feieraew' witnesses ax/ W fiaafim THE NORRIS Pin-Rs cm, WASHINGTON, n. c

@lnoentoz UNITED STATES PATENT OFFICE.

VENTlLATOR-GRAT E.

Specification of Letters Patent.

Patented Sept. 11, 1906.

Application filed August 22,1905. Serial No. 275.305.

To all whom 711'; may concern:

Be it known that I, SAMUEL PETERSEN, a citizen of the United States, residing at Coun cil Bluffs, in the county of Pottawattamie and State of Iowa, have invented new and useful Improvements in Ventilator-Grates, of which the following is a specification.

The invention relates to an improvement in ventilators of that class designed for use in connection with buildings, wherein the ventilator-frame is built or otherwise secured in the building during its construction.

The main object of the present ventilator is to simplify the construction and arrangement of the parts of the ventilator with a view to securing ease of operation and effectiveness in use.

The invention in its preferred form will be described in the following specification, refer ence being had particularly to the accompanying drawings, in which Figure 1 is a view in elevation of my improved ventilator, the slide being shown in closed position and the ventilator in place in a wall. Fig. 2 is an enlarged view of the ventilator, the slide being in open position Fig. 3 is a transverse view on the line 3 3 of Fig. 2.

Referring particularly to the drawings, my improved ventilator comprises a frame 1, preferably of thin metal, bent in U shape and secured in rectangular outline of the desired dimension, the frame comprising the sides and the end of the ventilator, as will be ap parent.

The ventilator-grate comprises a section of perforated plate or wire screening 2, which is secured in place within the side flanges of 1, as clearly shown in Fig. 3. The grate proper is preferably covered for one-half of the ven tilator by covers 3, secured in either side of the grate and within the side flanges of the ventilator-frame. A sliding cover 4 is also seated Within the side flanges of the frame, preferably intermediate one of the covers 3 and grate 2. The slide 4 is provided with a suitable projection 5, by which it maybe conveniently operated and moved into a position to close or open the ventilator, as will be obvious. The side flanges of the frame-bars 1 are designed to be of such extent to suitably embrace the parts described and prevent accidental separation thereof when in assem bled form. It is to be understood that the ventilator is to be constructed wholly of metal, preferably of the ordinary sheet material, and to be secured in the wall of the building, preferably with one-half its length concealed, as shown in Fig. 1.

The slide 4 is adapted for movement longitudinally of the ventilator within the flanges 6 of the side frame-bars, said slide when'the ventilator is wholly opened being positioned beneath or in rear of one of the covers 3, exposing the entire grate-surface beyond said cover for the passage of air therethrough. It is obvious that the cover 4 may be moved longitudinally to cover the exposed portion of the grate to the extent desired, whereby it effectually regulates the ventilation.

The ventilator described is of simple inexpensive manufacture, being constructed practically of sheet metal and wire-screening, and is thoroughly efficient for the purpose desired.

Having thus described the invention, What is claimed as new is A ventilator comprising a metallic frame including Ushaped. bars, a perforate grate secured within said bars, a cover fixed Within the bars on each side of the grate, said covers extending for a portion only of the length of the ventilator, and a slide movably mounted in the bars and operative between the grate and one of the covers, said slide being coextensive in width with the grate and in length with the projection of the grate beyond the covers.

, In testimony whereof I aflix my signature in presence of two witnesses.

SAMUEL PETERSEN.

Witnesses:

HANS J. WINTH'ERLICH, It. H. WILLIAMS. 

